Distorted Image Dropouts 118 Chapter 6 Troubleshooting C4170-90959 Possible Cause Action Paper does not meet printer specifications or is stored improperly. 1. Print a few more pages to see if the problem corrects itself. 2. Turn over the stack of paper in the tray. Also try rotating the paper 180 degrees. 3. Check the paper (or other print media) type and quality. Replace the paper, and advise the customer to use the recommended paper and store it properly. See “Media Troubleshooting” (page 129) Printer’s operating environment does not meet specifications. Make sure the printer’s operating environment meets specifications. See “Operating Environment” (page 26).
Wrong output bin for paper type. Print to a different output bin. Poor connection to the Intermediate PCB Reconnect the cables from the Laser Scanner Assembly to the Intermediate PCB (J1001, J1009) Poor connection of cables to the Engine Controller Assembly. Reseat the cables connected to the Engine Controller Assembly (J410). Defective Laser Scanner. Replace the Laser Scanner. Main motor failure. Replace main motor. Gear train failure. Replace gear plate. Defective Engine Controller Assembly. Replace the Engine Controller Assembly and the Intermediate PCB. Possible Cause Action Paper might be too smooth. Check the paper (or other print media) type and quality.
See “Media Troubleshooting” (page 129). Printer’s operating environment does not meet specifications. Make sure the printer’s operating environment meets specifications. See “Operating Environment” (page 26) Wrong toner density setting. Adjust the toner density setting in the print driver. Make sure EconoMode is off. Single sheet of paper defective. Try reprinting the job.